Snapshots showing gas surface density for our 4:1 ramses (top) and gasoline (bottom) simulations. Left panels show both galaxies at first apocenter, with arrows roughly indicating the direction of travel of the secondary galaxy. Middle panels show a zoom-in on the primary galaxy at first apocenter, and right panels show both galaxies at the second pericenter. In the right panels, circles mark the positions of the black holes (in each simulation, the more massive black hole is to the left).